.zanwu {
  width: 30%;
  height: 30px;
  margin: 0 auto;
  text-align: center;
  margin-top: 220px;
}

.leftBox1 {
  width: 100%;
  height: 100%;

}

.kBox1 {
  width: 100%;
  height: 100%;
  background-image: url('https://img0.baidu.com/it/u=2276214791,3441221836&fm=253&fmt=auto&app=138&f=PNG?w=464&h=258');
  background-size: 100%;
  background-repeat: no-repeat;
  padding: 12px 12px;
  box-sizing: border-box;
}

.libox {
  width: 100%;
  height: 30px;
  font-size: 18px;
  display: flex;
  margin-bottom: 15px;
}

.xyzbox {
  width: 40%;
  height: 340px;
  border-radius: 12px;
  box-shadow: 0px 0px 10px 0px #ccc;
  padding: 10px 10px;
  box-sizing: border-box;
}